| 基于场效应管与阶跃恢复二极管的皮秒级脉冲源设计 |
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| 引用本文： | 张岩松,张亚东,梁步阁,何继爱,.基于场效应管与阶跃恢复二极管的皮秒级脉冲源设计[J].强激光与粒子束,2017,29(4):045001. |
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| 作者姓名： | 张岩松 张亚东 梁步阁 何继爱 |
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| 作者单位： | 1.中南大学 航空航天学院, 长沙 41 0083; |
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| 摘 要： | 针对已有脉冲源无法兼顾脉冲宽度和幅值的现象,提出一种基于场效应管（MOSFET）和阶跃恢复二极管（SRD）相结合的皮秒级脉冲源设计方案。通过研究分析传统的几种脉冲源的设计方案,设计出一种百伏级的高重频皮秒级脉冲发生器,在PSPICE上对设计方案进行仿真并制作出脉冲源PCB板,实测在2 MHz的重频下产生半幅脉宽约为400 ps、幅度110 V以上的极窄脉冲,波形稳定,为高分辨的超宽带探测雷达发射机的设计提供了新的选择方案。
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| 关 键 词： | 阶跃恢复二极管 非线性传输线 窄脉冲 超宽带 场效应管 |
| 收稿时间： | 2016-09-05 |
Design of picosecond pulse source based on MOSFET and step recovery diode |
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| Institution: | 1.College of Aeronautics and Astronautics,Central South University,Changsha 410083,China;2.College of Computer and Communication,Lanzhou University of Technology,Lanzhou 730050,China |
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| Abstract: | As the existing pulse source can not balance pulse width and amplitude, a scheme of based on field effect transistor (MOSFET) and step recovery diode (SRD) combined with picosecond pulse source was put forward. Analyzing traditional designs of several pulse sources, we designed a high repetition rate picosecond pulse generator of 100 volt level and made a design simulation with PSPICE and developed the pulse source PCB board. Measurement shows 2 MHz repetition rate, half amplitude width 400 ps around, range above 110 V and stable waveform. The scheme providedes a new selection for high resolution UWB detection radar transmitter. |
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